Describe a situation or investigation of fossils in which an SEM would not be a useful tool. Explain why it would not be useful.

2.4.2 Scanning Electron Microscopy With Energy-Dispersive X-Ray Spectroscopy
SEM can offer a clear, high-resolution images of the size and surface texture of plastic-like particles, allowing researchers to discriminate MPs from interfering particles in the environment matrices (Cooper and Corcoran, 2010; Remy et al., 2015). In addition, SEM or environmental SEM equipped with EDX can determine the main atomic composition of putative plastic particles, which is useful for identifying carbon-dominant plastics from inorganic particles (Eriksen et al., 2013; Vianello et al., 2013).

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